00:01
For this problem, to begin, in part a, we're asked to suppose that the number 597 changes to 44, we're asked what happens to the median.
00:12
So, if we remove 597, well, actually, first of all, i'll note that before we make any changes, the median, you know, it's just the middle value of our dataset when sorted in order, can see that the median is 508 originally.
00:25
If we remove 597 and replace it with 444 instead, then that is going to shift around the placement of everything.
00:41
We can see that now 508 has been knocked out of its position as the median.
00:47
Now the median value is 470.
00:52
So we can see that the median decreased by 38.
01:03
For part b, we're asked what happens to the mean.
01:05
Well, we'll first have to calculate out the mean.
01:09
So the mean, one second here, we find the mean by taking the sum of all of our data points.
01:17
So the original mean is 4 ,338.
01:23
You add up all the data points, then we divide by the number of data points.
01:27
So, oh, actually, i need to be careful...